Sunlight vs Flash

I'm usually at work during the week when we have daylight hours, so my only chance to take closeups with sunlight is on the weekends. Today, as it has been so often lately, Chicago was overcast. I didn't have much natural light but I made due with what I had to try and get some practice in. I took some comparison shots of the same nugs, with natural light, and with flash.

Flash on Left Natural on Right

Let me know which shots you like better, the flash shots, or the natural lighting shots. Hopefully I can continue to improve on my nugporn.